How do you identify a fire sprinkler head?
Let’s get to it: a sprinkler identification number consists of one or two letters followed by three or four numbers. That code is imprinted on each sprinkler’s deflector—the thin metallic part furthest away from a sprinkler’s threaded inlet.
What is ELO sprinkler?
The Extra Large Orifice (ELO) sprinkler was developed for use in lieu of standard, ½ in. (12.7 mm) and 17/32 in. (13.5 m) orifice, sprinklers, particularly for protection of high piled storage in warehouses. Because of the ELO sprinkler’s large, nominal 0.64 in.
How do I know if my sprinkler head is recalled?
Recalled sprinkler heads to watch for These sprinkler heads can be identified based on the O-ring where the bulb goes into the base of the head. The heads that were not recalled have a bevel at the base where the bulb goes into the head. The CPSC sued the company.
What is the normal fire sprinkler pressure?
7 pounds-per-square-inch
➢ Fire sprinklers typically require only 7 pounds-per-square-inch (psi) to operate, which is less than the minimum required pressure for residential plumbing fixtures.
What are the different types of fire sprinklers?
What Are the Main Types of Sprinkler Systems?
- Wet Pipe System. Wet pipe sprinkler systems—or traditional fire sprinklers—are the most common across residential and commercial buildings.
- Dry Pipe System.
- Pre-Action System.
- Deluge System.
- Installing a Sprinkler System.
What are the types of sprinkler heads?
There are three basic sprinkler head types– Spray Irrigation Heads and Spray Rotary Sprinkler Heads, Bubbler Irrigation Heads, and Drip or Soaker Systems. Each different sprinkler head will water your plants in the particular way they like.
What is CMDA sprinkler?
CMDA sprinklers refer to a specific type of sprinkler listed for control of fires in storage applications and CMSA sprinklers refer to a specific type of sprinkler listed for storage applications with increased severity fires.
What K factor is 17 32?
8.0 GPM/psi1/2
In contrast, a 17/32” sprinkler with a K-factor of 8.0 GPM/psi1/2 (115,2 LPM/bar1/2), which will only discharge 67 gpm (253,6 lpm) or only a . 67 gpm/ft2 (27,2 mm/min) over a coverage area of 100 ft2 (9,29 m2) per sprinkler.
What Central Sprinkler heads are recalled?
AFFECTED MODELS CENTRAL “WET” SPRINKLERS (Manufactured from 1989-2000)
| GB | GB4-FR | BB2 |
|---|---|---|
| GB-J | GB4-EC | BB3 |
| GB-1 | GB4-QREC | SD1 |
| GB-ALPHA | GB-20 | SD2 |
| GB4 | GB-20 QR | SD3 |
Which organization recalled Omega fire sprinkler heads?
Consumer Product Safety Commission (CPSC)
WASHINGTON, D.C. – The U.S. Consumer Product Safety Commission (CPSC) and Central Sprinkler announced today the nationwide recall of approximately 8.4 million Omega brand fire sprinklers manufactured since 1982 by Central Sprinkler Corp. and its subsidiary, Central Sprinkler Co., of Lansdale, Pa.
How do I calculate psi for sprinklers?
Finding the Flow Rate or GPM
- Equation: Static pressure – friction loss +/– change in elevation = psi available to sprinkler.
- Example: You measure your static pressure at 65 psi and your total flow rate from your spigot at 10 gpm.
How do you calculate fire sprinkler flow rate?
If, for instance, you have a fire sprinkler with a discharge coefficient of 6.2: 3.87 x 6.2 = 24 gallons per minute. Multiply this individual flow rate by the total number of sprinklers. If your system has, for instance, 15 sprinklers: 24 x 15 = 360 gallons per minute.